Group 15 - Sony DVD Player - Revision history

UB08G15: /* CAD Drawings */

2008-12-05T20:51:31Z

CAD Drawings

UB08G15: /* References */

2008-12-05T20:06:37Z

References

UB08G15: /* Additional Part Information: */

2008-12-05T19:38:04Z

Additional Part Information:

UB08G15: /* Additional Part Information: */

2008-12-05T19:37:38Z

Additional Part Information:

UB08G15: /* CAD Drawings */

2008-12-05T19:36:46Z

CAD Drawings

UB08G15: /* CAD Drawings */

2008-12-05T19:36:08Z

CAD Drawings

UB08G15: /* CAD Drawings */

2008-12-05T19:34:47Z

CAD Drawings

UB08G15: /* Engineering Models */

2008-12-05T19:23:56Z

Engineering Models

UB08G15: /* Component-level changes */

2008-12-05T19:16:57Z

Component-level changes

UB08G15: /* After Assembly */

2008-12-05T19:16:17Z

After Assembly

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 ! width="100"|Disk Tray
 ! width="100"|Gear
-! width="100"|Slider
+! width="100"|Elevator Ramp
 |-
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 <center>''CAD models were created and rendered in Autodesk Inventor 2009. These models were then imported into Autodesk Viz for animation.''</center><br><br>
 ==Assembly Procedure==

@@ Line 807: / Line 807: @@
 =References=
-DAC Schematics - http://www.tnt-audio.com/clinica/convertus3_e.html
+DAC Schematics - http://www.tnt-audio.com/clinica/convertus3_e.html<br>
 Basic INFORMATION - http://www.madehow.com/Volume-4/DVD-Player.html
 http://electronics.howstuffworks.com/dvd6.htm

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 |}
-===Additional Part Information:===
+===Additional Part Information===
 '''1 - External back screws'''

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 |}
-==Additional Part Information:==
+===Additional Part Information:===
 '''1 - External back screws'''

← Older revision		Revision as of 19:36, 5 December 2008
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−	<center>''CAD models were created and rendered in Autodesk Inventor 2009. These models were then imported into Autodesk Viz for animation.''<br><br>	+	<center>''CAD models were created and rendered in Autodesk Inventor 2009. These models were then imported into Autodesk Viz for animation.''</center><br><br>

	==Assembly Procedure==		==Assembly Procedure==

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 <br> The Base panel is made out of stainless steel because it needs to support the load of all the other components. The base is required to be sturdy and strong enough to screw components into. Its look is due to the needs of the parts that rest on top of it and connect to the base.
-==CAD Drawings==
+===Component-level Changes===
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 |}
 ''CAD models were created and rendered in Autodesk Inventor 2009. These models were then imported into Autodesk Viz for animation.''

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 In the early stages of design for this product, graphical or semantic models could be used to explain the concept of what the final DVD player would look like. Using software such as CAD and Autodesk Inventor, engineers could graphically represent what each component of the player should look like. Through reports or write-ups, engineers would be able to convey ideas about the function of each component and also comment on the DVD player as a whole. In addition to graphical and semantic models, certain analytical/mathematical models could be employed. Three are listed below.
-'''Circuit Models: '''Several models to technically explain the electronics inside the DVD player would be necessary to test (analytically) whether or not each circuit board or electronic component is able to function as intended. These models would include voltage, current, resistance, and capacitance calculations.
+'''Circuit Models: '''Several models to technically explain the electronics inside the DVD player would be necessary to test (analytically) whether or not each circuit board or electronic component is able to function as intended. These models would include voltage, current, resistance and capacitance calculations, and would have to be precise.
-'''Material Stress/Strain Models: '''Models to analytically determine what kinds of stress the casing of the DVD player could withstand would be necessary before the manufacturing process begins to ensure successful production. These models would include stress calculations at points in the housing where screws are used to connect components or other parts of the housing.
+'''Material Stress/Strain Models: '''Models to analytically determine what kinds of stress the casing of the DVD player could withstand would be necessary before the manufacturing process begins to ensure successful production. These models would include stress calculations at points in the housing where screws are used to connect components or other parts of the housing. The calculations would be effective as estimates, but the cost of more precise calculations may be worth the result of fewer faulty products.
-'''Power Transmission Models: '''Since the motor (tray open/close) in the player is connected to an electrical power supply, these types of models could be used to mathematically test whether or not a specific voltage would overload the circuitry. These models would include many of the same calculations as the circuit models, but would be used to find the ideal way to power the electric motor (in which electrical energy is converted into mechanical energy).
+'''Power Transmission Models: '''Since the motor (tray open/close) in the player is connected to an electrical power supply, these types of models could be used to mathematically test whether or not a specific voltage would overload the circuitry. These models would include many of the same calculations as the circuit models, but would be used to find the ideal way to power the electric motor (in which electrical energy is converted into mechanical energy). These calculations would have to be precise in order to inform the consumer of the limitations of the product.
 ===Product-level changes===

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 We realize that the 'added functionality' is somewhat separate from our discussion; a player with some of these functions would most likely co-exist with this player.
-===Component-level changes===
 ===Company Recommendations===

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 ==After Assembly==
-Throughout this project we have learned in greater detail how the DVD player works.<br>
+Throughout this project we have learned in greater detail how the DVD player works. We learned there are actually 31 unique parts - much more than the 9 we predicted. <br>
-We learned there are actually 31 unique parts - much more than the 9 we predicted. We learned the DVD player works as following:<br>
+The DVD player works as following:<br>
 *When the power pushbutton (7) is pressed electric power enters the unit from a 120V wall source, through the power cord and into the power supply board (1).<br>
 *The power is distributed to each of the other circuit boards through metal contacts. It then charges all of the capacitors and other electrical components.<br>